Current and Voltage Controls
3-Phase Max. and Min. Current Control
Type H 475
鈥?3-phased current metering relay
鈥?Measures on current with 3-phased current
metering transformers, type A74-.. ...
鈥?Measures if all 3-phase currents are within
set limits
鈥?Upper and lower limits separately adjustable
鈥?Output: 10 A SPDT relay
鈥?For mounting on DIN-rail in accordance with
DIN/EN 50 022
鈥?H4-housing
鈥?LED-indication for power supply and output ON
鈥?AC power supply 2-phases
Product Description
3-phase current metering re-
lay with separate setting of
upper and lower current level.
For DIN-rail mounting. Often
used where a certain applica-
tion such as a large mixer has
to be kept within a set current
value in order not to overload
the system.
Ordering Key
Housing
Type
Output
Power supply
H 475 156 230
Type Selection
Plug
Screw
terminals
Output
SPDT
Supply: 115 VAC
H 475 156 115
Supply: 230 VAC
H 475 156 230
Supply: 400 VAC
H 475 156 400
Input Specifications
Input from current
transformers
Terminal 5
Terminal 6
Terminal 7
Terminal 8
Input voltage
A74-.. ...
red, phase L1
white, phase L2
yellow, phase L3
black
0.4-4 V
p
Output Specifications
Output
Rated insulation voltage
Contact ratings
(AgCdO)
Resistive loads
AC 1
DC 1
or
Small inductive loads AC 15
DC 13
Mechanical life
Electrical life
AC 1
SPDT relay
250 VAC (rms)
(cont./elect.)
碌 (micro gap)
10 A/250 VAC (2500 VA)
1 A/250 VDC (250 W)
10 A/25 VDC (250 W)
2.5 A/230 VAC
5 A/24 VDC
鈮?/div>
30 x 10
6
operations
鈮?/div>
2.5 x 10
5
operations
(at max. load)
鈮?/div>
7200 operations/h
Supply Specifications
Power supply AC types
Rated operational voltage
Through term. 22 & 24 115
230
400
Voltage interruption
Dielectric voltage
Rated impulse withstand volt.
Overvoltage cat. III (IEC 60664)
(IEC 60038)
115 VAC 鹵15%, 45 to 65 Hz
230 VAC 鹵 15%, 45 to 65 Hz
400 VAC 鹵 15%, 45 to 65 Hz
鈮?/div>
40 ms
2 kVAC (rms) (supply/elect.)
4 kV (1.2/50 碌s) (line/neutral)
(line/line), no direct connec-
tion to electronics
2.5 VA
Operating frequency
Dielectric strength
Dielectric voltage
鈮?/div>
2 kVAC (rms) (cont./elect.)
Rated impulse withstand volt. 4 kV (1.2/50 碌s) (cont./elect.)
(IEC 60664)
Rated operational power
Specifications are subject to change without notice (26.10.99)
1
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